I haven't made this yet but it looks like an easy way to use up extra ham. You could lower the calorie count by using reduced-fat sour cream and cheddar cheese and by adding more green beans to increase the number of servings. If you can't find chive-and-onion sour cream, you could use regular and add in some chopped or freeze-dried chives and a pinch of onion powder.

Slow Cooker Ham and au Gratins for Two
Source: Pillsbury

Combine comfort-food-favorite potatoes, ham and cheese in a slow cooker, and come home to a creamy, delicious dinner for two.